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Finding the Fourth Proportional to 1,758, 2,426.04 and 972.12

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Solution

The fourth proportional to 1,758, 2,426.04 and 972.12 is: 1,341.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758 : 2,426.04 = 972.12 : x
  2. Step 2: Convert to fraction form
    1,758/2,426.04 = 972.12/x
  3. Step 3: Cross multiply
    1,758x = 2,426.04 × 972.12
  4. Step 4: Simplify right side
    1,758x = 2,358,402.00
  5. Step 5: Solve for x
    x = 2,358,402.00/1,758
  6. Step 6: Final answer
    x = 1,341.53

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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.