Home / 5,152.60-7,728.42-1,865.56

Finding the Fourth Proportional to 5,152.60, 7,728.42 and 1,865.56

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Solution

The fourth proportional to 5,152.60, 7,728.42 and 1,865.56 is: 2,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.60 : 7,728.42 = 1,865.56 : x
  2. Step 2: Convert to fraction form
    5,152.60/7,728.42 = 1,865.56/x
  3. Step 3: Cross multiply
    5,152.60x = 7,728.42 × 1,865.56
  4. Step 4: Simplify right side
    5,152.60x = 14,417,831.22
  5. Step 5: Solve for x
    x = 14,417,831.22/5,152.60
  6. Step 6: Final answer
    x = 2,798.17

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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.