Home / 3,487.50-4,812.77-1,915.59

Finding the Fourth Proportional to 3,487.50, 4,812.77 and 1,915.59

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Solution

The fourth proportional to 3,487.50, 4,812.77 and 1,915.59 is: 2,643.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.50 : 4,812.77 = 1,915.59 : x
  2. Step 2: Convert to fraction form
    3,487.50/4,812.77 = 1,915.59/x
  3. Step 3: Cross multiply
    3,487.50x = 4,812.77 × 1,915.59
  4. Step 4: Simplify right side
    3,487.50x = 9,219,294.08
  5. Step 5: Solve for x
    x = 9,219,294.08/3,487.50
  6. Step 6: Final answer
    x = 2,643.53

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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.