Home / 3,010.32-4,154.40-1,831.20

Finding the Fourth Proportional to 3,010.32, 4,154.40 and 1,831.20

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Solution

The fourth proportional to 3,010.32, 4,154.40 and 1,831.20 is: 2,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.32 : 4,154.40 = 1,831.20 : x
  2. Step 2: Convert to fraction form
    3,010.32/4,154.40 = 1,831.20/x
  3. Step 3: Cross multiply
    3,010.32x = 4,154.40 × 1,831.20
  4. Step 4: Simplify right side
    3,010.32x = 7,607,537.28
  5. Step 5: Solve for x
    x = 7,607,537.28/3,010.32
  6. Step 6: Final answer
    x = 2,527.15

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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.