Home / 1,486.69-2,045.12-1,426.75

Finding the Fourth Proportional to 1,486.69, 2,045.12 and 1,426.75

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Solution

The fourth proportional to 1,486.69, 2,045.12 and 1,426.75 is: 1,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.69 : 2,045.12 = 1,426.75 : x
  2. Step 2: Convert to fraction form
    1,486.69/2,045.12 = 1,426.75/x
  3. Step 3: Cross multiply
    1,486.69x = 2,045.12 × 1,426.75
  4. Step 4: Simplify right side
    1,486.69x = 2,917,862.71
  5. Step 5: Solve for x
    x = 2,917,862.71/1,486.69
  6. Step 6: Final answer
    x = 1,962.66

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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.