Home / 5,220.10-7,831.37-1,710.10

Finding the Fourth Proportional to 5,220.10, 7,831.37 and 1,710.10

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Solution

The fourth proportional to 5,220.10, 7,831.37 and 1,710.10 is: 2,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.10 : 7,831.37 = 1,710.10 : x
  2. Step 2: Convert to fraction form
    5,220.10/7,831.37 = 1,710.10/x
  3. Step 3: Cross multiply
    5,220.10x = 7,831.37 × 1,710.10
  4. Step 4: Simplify right side
    5,220.10x = 13,392,425.84
  5. Step 5: Solve for x
    x = 13,392,425.84/5,220.10
  6. Step 6: Final answer
    x = 2,565.55

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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.