Home / 1,127.59-1,556.23-630.26

Finding the Fourth Proportional to 1,127.59, 1,556.23 and 630.26

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Solution

The fourth proportional to 1,127.59, 1,556.23 and 630.26 is: 869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.59 : 1,556.23 = 630.26 : x
  2. Step 2: Convert to fraction form
    1,127.59/1,556.23 = 630.26/x
  3. Step 3: Cross multiply
    1,127.59x = 1,556.23 × 630.26
  4. Step 4: Simplify right side
    1,127.59x = 980,831.83
  5. Step 5: Solve for x
    x = 980,831.83/1,127.59
  6. Step 6: Final answer
    x = 869.85

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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.