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Finding the Fourth Proportional to 1,874.78, 2,587.19 and 1,035.46

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Solution

The fourth proportional to 1,874.78, 2,587.19 and 1,035.46 is: 1,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.78 : 2,587.19 = 1,035.46 : x
  2. Step 2: Convert to fraction form
    1,874.78/2,587.19 = 1,035.46/x
  3. Step 3: Cross multiply
    1,874.78x = 2,587.19 × 1,035.46
  4. Step 4: Simplify right side
    1,874.78x = 2,678,931.76
  5. Step 5: Solve for x
    x = 2,678,931.76/1,874.78
  6. Step 6: Final answer
    x = 1,428.93

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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.