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Finding the Fourth Proportional to 1,471.87, 2,030.16 and 1,029.88

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Solution

The fourth proportional to 1,471.87, 2,030.16 and 1,029.88 is: 1,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.87 : 2,030.16 = 1,029.88 : x
  2. Step 2: Convert to fraction form
    1,471.87/2,030.16 = 1,029.88/x
  3. Step 3: Cross multiply
    1,471.87x = 2,030.16 × 1,029.88
  4. Step 4: Simplify right side
    1,471.87x = 2,090,821.18
  5. Step 5: Solve for x
    x = 2,090,821.18/1,471.87
  6. Step 6: Final answer
    x = 1,420.52

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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.