Home / 1,041.20-1,426.18-1,038.32

Finding the Fourth Proportional to 1,041.20, 1,426.18 and 1,038.32

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Solution

The fourth proportional to 1,041.20, 1,426.18 and 1,038.32 is: 1,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.20 : 1,426.18 = 1,038.32 : x
  2. Step 2: Convert to fraction form
    1,041.20/1,426.18 = 1,038.32/x
  3. Step 3: Cross multiply
    1,041.20x = 1,426.18 × 1,038.32
  4. Step 4: Simplify right side
    1,041.20x = 1,480,831.22
  5. Step 5: Solve for x
    x = 1,480,831.22/1,041.20
  6. Step 6: Final answer
    x = 1,422.24

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.