Home / 1,417.95-2,115.14-1,395.27

Finding the Fourth Proportional to 1,417.95, 2,115.14 and 1,395.27

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Solution

The fourth proportional to 1,417.95, 2,115.14 and 1,395.27 is: 2,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.95 : 2,115.14 = 1,395.27 : x
  2. Step 2: Convert to fraction form
    1,417.95/2,115.14 = 1,395.27/x
  3. Step 3: Cross multiply
    1,417.95x = 2,115.14 × 1,395.27
  4. Step 4: Simplify right side
    1,417.95x = 2,951,184.41
  5. Step 5: Solve for x
    x = 2,951,184.41/1,417.95
  6. Step 6: Final answer
    x = 2,081.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.