Home / 1,831.21-2,526.10-1,166.90

Finding the Fourth Proportional to 1,831.21, 2,526.10 and 1,166.90

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Solution

The fourth proportional to 1,831.21, 2,526.10 and 1,166.90 is: 1,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.21 : 2,526.10 = 1,166.90 : x
  2. Step 2: Convert to fraction form
    1,831.21/2,526.10 = 1,166.90/x
  3. Step 3: Cross multiply
    1,831.21x = 2,526.10 × 1,166.90
  4. Step 4: Simplify right side
    1,831.21x = 2,947,690.54
  5. Step 5: Solve for x
    x = 2,947,690.54/1,831.21
  6. Step 6: Final answer
    x = 1,609.70

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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.