Home / 1,307.77-1,951.48-1,191.34

Finding the Fourth Proportional to 1,307.77, 1,951.48 and 1,191.34

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Solution

The fourth proportional to 1,307.77, 1,951.48 and 1,191.34 is: 1,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.77 : 1,951.48 = 1,191.34 : x
  2. Step 2: Convert to fraction form
    1,307.77/1,951.48 = 1,191.34/x
  3. Step 3: Cross multiply
    1,307.77x = 1,951.48 × 1,191.34
  4. Step 4: Simplify right side
    1,307.77x = 2,324,876.18
  5. Step 5: Solve for x
    x = 2,324,876.18/1,307.77
  6. Step 6: Final answer
    x = 1,777.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.