Home / 2,887.40-4,330.63-1,038.17

Finding the Fourth Proportional to 2,887.40, 4,330.63 and 1,038.17

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Solution

The fourth proportional to 2,887.40, 4,330.63 and 1,038.17 is: 1,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.40 : 4,330.63 = 1,038.17 : x
  2. Step 2: Convert to fraction form
    2,887.40/4,330.63 = 1,038.17/x
  3. Step 3: Cross multiply
    2,887.40x = 4,330.63 × 1,038.17
  4. Step 4: Simplify right side
    2,887.40x = 4,495,942.27
  5. Step 5: Solve for x
    x = 4,495,942.27/2,887.40
  6. Step 6: Final answer
    x = 1,557.09

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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.