Home / 5,585.45-8,377.38-1,887.18

Finding the Fourth Proportional to 5,585.45, 8,377.38 and 1,887.18

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Solution

The fourth proportional to 5,585.45, 8,377.38 and 1,887.18 is: 2,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.45 : 8,377.38 = 1,887.18 : x
  2. Step 2: Convert to fraction form
    5,585.45/8,377.38 = 1,887.18/x
  3. Step 3: Cross multiply
    5,585.45x = 8,377.38 × 1,887.18
  4. Step 4: Simplify right side
    5,585.45x = 15,809,623.99
  5. Step 5: Solve for x
    x = 15,809,623.99/5,585.45
  6. Step 6: Final answer
    x = 2,830.50

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Half scale
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Double scale
Find fourth proportional to 5,586.45, 8,378.88 and 1,888.18
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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.