Home / 5,280.19-7,283.48-3,487.68

Finding the Fourth Proportional to 5,280.19, 7,283.48 and 3,487.68

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Solution

The fourth proportional to 5,280.19, 7,283.48 and 3,487.68 is: 4,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.19 : 7,283.48 = 3,487.68 : x
  2. Step 2: Convert to fraction form
    5,280.19/7,283.48 = 3,487.68/x
  3. Step 3: Cross multiply
    5,280.19x = 7,283.48 × 3,487.68
  4. Step 4: Simplify right side
    5,280.19x = 25,402,447.53
  5. Step 5: Solve for x
    x = 25,402,447.53/5,280.19
  6. Step 6: Final answer
    x = 4,810.90

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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.