Home / 1,718.24-2,370.96-972.15

Finding the Fourth Proportional to 1,718.24, 2,370.96 and 972.15

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Solution

The fourth proportional to 1,718.24, 2,370.96 and 972.15 is: 1,341.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.24 : 2,370.96 = 972.15 : x
  2. Step 2: Convert to fraction form
    1,718.24/2,370.96 = 972.15/x
  3. Step 3: Cross multiply
    1,718.24x = 2,370.96 × 972.15
  4. Step 4: Simplify right side
    1,718.24x = 2,304,931.84
  5. Step 5: Solve for x
    x = 2,304,931.84/1,718.24
  6. Step 6: Final answer
    x = 1,341.45

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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.