Home / 1,417.65-2,138.45-1,342.95

Finding the Fourth Proportional to 1,417.65, 2,138.45 and 1,342.95

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Solution

The fourth proportional to 1,417.65, 2,138.45 and 1,342.95 is: 2,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.65 : 2,138.45 = 1,342.95 : x
  2. Step 2: Convert to fraction form
    1,417.65/2,138.45 = 1,342.95/x
  3. Step 3: Cross multiply
    1,417.65x = 2,138.45 × 1,342.95
  4. Step 4: Simplify right side
    1,417.65x = 2,871,824.71
  5. Step 5: Solve for x
    x = 2,871,824.71/1,417.65
  6. Step 6: Final answer
    x = 2,025.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.