Home / 1,307.07-1,957.23-1,101.20

Finding the Fourth Proportional to 1,307.07, 1,957.23 and 1,101.20

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Solution

The fourth proportional to 1,307.07, 1,957.23 and 1,101.20 is: 1,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.07 : 1,957.23 = 1,101.20 : x
  2. Step 2: Convert to fraction form
    1,307.07/1,957.23 = 1,101.20/x
  3. Step 3: Cross multiply
    1,307.07x = 1,957.23 × 1,101.20
  4. Step 4: Simplify right side
    1,307.07x = 2,155,291.89
  5. Step 5: Solve for x
    x = 2,155,291.89/1,307.07
  6. Step 6: Final answer
    x = 1,648.95

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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.