Home / 1,401.63-2,102.78-632.13

Finding the Fourth Proportional to 1,401.63, 2,102.78 and 632.13

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Solution

The fourth proportional to 1,401.63, 2,102.78 and 632.13 is: 948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.63 : 2,102.78 = 632.13 : x
  2. Step 2: Convert to fraction form
    1,401.63/2,102.78 = 632.13/x
  3. Step 3: Cross multiply
    1,401.63x = 2,102.78 × 632.13
  4. Step 4: Simplify right side
    1,401.63x = 1,329,230.32
  5. Step 5: Solve for x
    x = 1,329,230.32/1,401.63
  6. Step 6: Final answer
    x = 948.35

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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.