Home / 2,887.66-4,330.34-1,038.20

Finding the Fourth Proportional to 2,887.66, 4,330.34 and 1,038.20

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Solution

The fourth proportional to 2,887.66, 4,330.34 and 1,038.20 is: 1,556.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.66 : 4,330.34 = 1,038.20 : x
  2. Step 2: Convert to fraction form
    2,887.66/4,330.34 = 1,038.20/x
  3. Step 3: Cross multiply
    2,887.66x = 4,330.34 × 1,038.20
  4. Step 4: Simplify right side
    2,887.66x = 4,495,753.80
  5. Step 5: Solve for x
    x = 4,495,753.80/2,887.66
  6. Step 6: Final answer
    x = 1,556.89

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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.