Home / 2,378.16-3,566.20-1,129.11

Finding the Fourth Proportional to 2,378.16, 3,566.20 and 1,129.11

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Solution

The fourth proportional to 2,378.16, 3,566.20 and 1,129.11 is: 1,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.16 : 3,566.20 = 1,129.11 : x
  2. Step 2: Convert to fraction form
    2,378.16/3,566.20 = 1,129.11/x
  3. Step 3: Cross multiply
    2,378.16x = 3,566.20 × 1,129.11
  4. Step 4: Simplify right side
    2,378.16x = 4,026,632.08
  5. Step 5: Solve for x
    x = 4,026,632.08/2,378.16
  6. Step 6: Final answer
    x = 1,693.17

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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.