Home / 3,487.64-4,813.02-1,915.76

Finding the Fourth Proportional to 3,487.64, 4,813.02 and 1,915.76

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Solution

The fourth proportional to 3,487.64, 4,813.02 and 1,915.76 is: 2,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.64 : 4,813.02 = 1,915.76 : x
  2. Step 2: Convert to fraction form
    3,487.64/4,813.02 = 1,915.76/x
  3. Step 3: Cross multiply
    3,487.64x = 4,813.02 × 1,915.76
  4. Step 4: Simplify right side
    3,487.64x = 9,220,603.23
  5. Step 5: Solve for x
    x = 9,220,603.23/3,487.64
  6. Step 6: Final answer
    x = 2,643.80

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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.