Home / 1,515.76-2,271.65-1,417.11

Finding the Fourth Proportional to 1,515.76, 2,271.65 and 1,417.11

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Solution

The fourth proportional to 1,515.76, 2,271.65 and 1,417.11 is: 2,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.76 : 2,271.65 = 1,417.11 : x
  2. Step 2: Convert to fraction form
    1,515.76/2,271.65 = 1,417.11/x
  3. Step 3: Cross multiply
    1,515.76x = 2,271.65 × 1,417.11
  4. Step 4: Simplify right side
    1,515.76x = 3,219,177.93
  5. Step 5: Solve for x
    x = 3,219,177.93/1,515.76
  6. Step 6: Final answer
    x = 2,123.80

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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.