Home / 1,560.70-2,341.20-738.77

Finding the Fourth Proportional to 1,560.70, 2,341.20 and 738.77

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Solution

The fourth proportional to 1,560.70, 2,341.20 and 738.77 is: 1,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.70 : 2,341.20 = 738.77 : x
  2. Step 2: Convert to fraction form
    1,560.70/2,341.20 = 738.77/x
  3. Step 3: Cross multiply
    1,560.70x = 2,341.20 × 738.77
  4. Step 4: Simplify right side
    1,560.70x = 1,729,608.32
  5. Step 5: Solve for x
    x = 1,729,608.32/1,560.70
  6. Step 6: Final answer
    x = 1,108.23

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1.5x scale

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.