Home / 2,887.53-4,330.82-1,038.30

Finding the Fourth Proportional to 2,887.53, 4,330.82 and 1,038.30

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Solution

The fourth proportional to 2,887.53, 4,330.82 and 1,038.30 is: 1,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.53 : 4,330.82 = 1,038.30 : x
  2. Step 2: Convert to fraction form
    2,887.53/4,330.82 = 1,038.30/x
  3. Step 3: Cross multiply
    2,887.53x = 4,330.82 × 1,038.30
  4. Step 4: Simplify right side
    2,887.53x = 4,496,685.21
  5. Step 5: Solve for x
    x = 4,496,685.21/2,887.53
  6. Step 6: Final answer
    x = 1,557.28

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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.