Home / 7,530.19-10,388.95-4,218.19

Finding the Fourth Proportional to 7,530.19, 10,388.95 and 4,218.19

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Solution

The fourth proportional to 7,530.19, 10,388.95 and 4,218.19 is: 5,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530.19 : 10,388.95 = 4,218.19 : x
  2. Step 2: Convert to fraction form
    7,530.19/10,388.95 = 4,218.19/x
  3. Step 3: Cross multiply
    7,530.19x = 10,388.95 × 4,218.19
  4. Step 4: Simplify right side
    7,530.19x = 43,822,565.00
  5. Step 5: Solve for x
    x = 43,822,565.00/7,530.19
  6. Step 6: Final answer
    x = 5,819.58

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.