Home / 1,758.16-2,426.26-972.20

Finding the Fourth Proportional to 1,758.16, 2,426.26 and 972.20

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Solution

The fourth proportional to 1,758.16, 2,426.26 and 972.20 is: 1,341.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.16 : 2,426.26 = 972.20 : x
  2. Step 2: Convert to fraction form
    1,758.16/2,426.26 = 972.20/x
  3. Step 3: Cross multiply
    1,758.16x = 2,426.26 × 972.20
  4. Step 4: Simplify right side
    1,758.16x = 2,358,809.97
  5. Step 5: Solve for x
    x = 2,358,809.97/1,758.16
  6. Step 6: Final answer
    x = 1,341.64

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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.