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Finding the Fourth Proportional to 1,758.31, 2,426.51 and 972.35

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Solution

The fourth proportional to 1,758.31, 2,426.51 and 972.35 is: 1,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.31 : 2,426.51 = 972.35 : x
  2. Step 2: Convert to fraction form
    1,758.31/2,426.51 = 972.35/x
  3. Step 3: Cross multiply
    1,758.31x = 2,426.51 × 972.35
  4. Step 4: Simplify right side
    1,758.31x = 2,359,424.58
  5. Step 5: Solve for x
    x = 2,359,424.58/1,758.31
  6. Step 6: Final answer
    x = 1,341.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.