Home / 4,145.77-6,218.65-1,223.85

Finding the Fourth Proportional to 4,145.77, 6,218.65 and 1,223.85

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Solution

The fourth proportional to 4,145.77, 6,218.65 and 1,223.85 is: 1,835.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.77 : 6,218.65 = 1,223.85 : x
  2. Step 2: Convert to fraction form
    4,145.77/6,218.65 = 1,223.85/x
  3. Step 3: Cross multiply
    4,145.77x = 6,218.65 × 1,223.85
  4. Step 4: Simplify right side
    4,145.77x = 7,610,663.71
  5. Step 5: Solve for x
    x = 7,610,663.71/4,145.77
  6. Step 6: Final answer
    x = 1,835.77

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Half scale
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Double scale
Find fourth proportional to 4,146.77, 6,220.15 and 1,224.85
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.