Home / 1,420.07-2,126.66-1,007.24

Finding the Fourth Proportional to 1,420.07, 2,126.66 and 1,007.24

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Solution

The fourth proportional to 1,420.07, 2,126.66 and 1,007.24 is: 1,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420.07 : 2,126.66 = 1,007.24 : x
  2. Step 2: Convert to fraction form
    1,420.07/2,126.66 = 1,007.24/x
  3. Step 3: Cross multiply
    1,420.07x = 2,126.66 × 1,007.24
  4. Step 4: Simplify right side
    1,420.07x = 2,142,041.35
  5. Step 5: Solve for x
    x = 2,142,041.35/1,420.07
  6. Step 6: Final answer
    x = 1,508.41

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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.