Home / 1,327.61-1,831.73-1,106.21

Finding the Fourth Proportional to 1,327.61, 1,831.73 and 1,106.21

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Solution

The fourth proportional to 1,327.61, 1,831.73 and 1,106.21 is: 1,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.61 : 1,831.73 = 1,106.21 : x
  2. Step 2: Convert to fraction form
    1,327.61/1,831.73 = 1,106.21/x
  3. Step 3: Cross multiply
    1,327.61x = 1,831.73 × 1,106.21
  4. Step 4: Simplify right side
    1,327.61x = 2,026,263.35
  5. Step 5: Solve for x
    x = 2,026,263.35/1,327.61
  6. Step 6: Final answer
    x = 1,526.25

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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.