Home / 1,516.56-2,275.65-1,406.40

Finding the Fourth Proportional to 1,516.56, 2,275.65 and 1,406.40

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Solution

The fourth proportional to 1,516.56, 2,275.65 and 1,406.40 is: 2,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.56 : 2,275.65 = 1,406.40 : x
  2. Step 2: Convert to fraction form
    1,516.56/2,275.65 = 1,406.40/x
  3. Step 3: Cross multiply
    1,516.56x = 2,275.65 × 1,406.40
  4. Step 4: Simplify right side
    1,516.56x = 3,200,474.16
  5. Step 5: Solve for x
    x = 3,200,474.16/1,516.56
  6. Step 6: Final answer
    x = 2,110.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.