Home / 1,560.48-2,152.78-1,000.77

Finding the Fourth Proportional to 1,560.48, 2,152.78 and 1,000.77

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Solution

The fourth proportional to 1,560.48, 2,152.78 and 1,000.77 is: 1,380.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.48 : 2,152.78 = 1,000.77 : x
  2. Step 2: Convert to fraction form
    1,560.48/2,152.78 = 1,000.77/x
  3. Step 3: Cross multiply
    1,560.48x = 2,152.78 × 1,000.77
  4. Step 4: Simplify right side
    1,560.48x = 2,154,437.64
  5. Step 5: Solve for x
    x = 2,154,437.64/1,560.48
  6. Step 6: Final answer
    x = 1,380.62

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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.