Home / 5,474.64-7,555.01-3,116.78

Finding the Fourth Proportional to 5,474.64, 7,555.01 and 3,116.78

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Solution

The fourth proportional to 5,474.64, 7,555.01 and 3,116.78 is: 4,301.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.64 : 7,555.01 = 3,116.78 : x
  2. Step 2: Convert to fraction form
    5,474.64/7,555.01 = 3,116.78/x
  3. Step 3: Cross multiply
    5,474.64x = 7,555.01 × 3,116.78
  4. Step 4: Simplify right side
    5,474.64x = 23,547,287.81
  5. Step 5: Solve for x
    x = 23,547,287.81/5,474.64
  6. Step 6: Final answer
    x = 4,301.16

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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.