Home / 1,929.16-2,658.18-1,307.08

Finding the Fourth Proportional to 1,929.16, 2,658.18 and 1,307.08

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Solution

The fourth proportional to 1,929.16, 2,658.18 and 1,307.08 is: 1,801.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.16 : 2,658.18 = 1,307.08 : x
  2. Step 2: Convert to fraction form
    1,929.16/2,658.18 = 1,307.08/x
  3. Step 3: Cross multiply
    1,929.16x = 2,658.18 × 1,307.08
  4. Step 4: Simplify right side
    1,929.16x = 3,474,453.91
  5. Step 5: Solve for x
    x = 3,474,453.91/1,929.16
  6. Step 6: Final answer
    x = 1,801.02

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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.