Home / 5,153.76-7,730.64-1,258.16

Finding the Fourth Proportional to 5,153.76, 7,730.64 and 1,258.16

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Solution

The fourth proportional to 5,153.76, 7,730.64 and 1,258.16 is: 1,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.76 : 7,730.64 = 1,258.16 : x
  2. Step 2: Convert to fraction form
    5,153.76/7,730.64 = 1,258.16/x
  3. Step 3: Cross multiply
    5,153.76x = 7,730.64 × 1,258.16
  4. Step 4: Simplify right side
    5,153.76x = 9,726,382.02
  5. Step 5: Solve for x
    x = 9,726,382.02/5,153.76
  6. Step 6: Final answer
    x = 1,887.24

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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.