Home / 1,520.76-2,095.80-1,403.10

Finding the Fourth Proportional to 1,520.76, 2,095.80 and 1,403.10

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Solution

The fourth proportional to 1,520.76, 2,095.80 and 1,403.10 is: 1,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.76 : 2,095.80 = 1,403.10 : x
  2. Step 2: Convert to fraction form
    1,520.76/2,095.80 = 1,403.10/x
  3. Step 3: Cross multiply
    1,520.76x = 2,095.80 × 1,403.10
  4. Step 4: Simplify right side
    1,520.76x = 2,940,616.98
  5. Step 5: Solve for x
    x = 2,940,616.98/1,520.76
  6. Step 6: Final answer
    x = 1,933.65

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1.5x scale

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.