Home / 1,461.41-2,016.50-1,387.53

Finding the Fourth Proportional to 1,461.41, 2,016.50 and 1,387.53

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Solution

The fourth proportional to 1,461.41, 2,016.50 and 1,387.53 is: 1,914.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.41 : 2,016.50 = 1,387.53 : x
  2. Step 2: Convert to fraction form
    1,461.41/2,016.50 = 1,387.53/x
  3. Step 3: Cross multiply
    1,461.41x = 2,016.50 × 1,387.53
  4. Step 4: Simplify right side
    1,461.41x = 2,797,955.11
  5. Step 5: Solve for x
    x = 2,797,955.11/1,461.41
  6. Step 6: Final answer
    x = 1,914.55

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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.