Home / 1,506.12-2,078.08-1,225.88

Finding the Fourth Proportional to 1,506.12, 2,078.08 and 1,225.88

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Solution

The fourth proportional to 1,506.12, 2,078.08 and 1,225.88 is: 1,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.12 : 2,078.08 = 1,225.88 : x
  2. Step 2: Convert to fraction form
    1,506.12/2,078.08 = 1,225.88/x
  3. Step 3: Cross multiply
    1,506.12x = 2,078.08 × 1,225.88
  4. Step 4: Simplify right side
    1,506.12x = 2,547,476.71
  5. Step 5: Solve for x
    x = 2,547,476.71/1,506.12
  6. Step 6: Final answer
    x = 1,691.42

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1.5x scale

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.