Home / 1,127.93-1,556.61-630.58

Finding the Fourth Proportional to 1,127.93, 1,556.61 and 630.58

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Solution

The fourth proportional to 1,127.93, 1,556.61 and 630.58 is: 870.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.93 : 1,556.61 = 630.58 : x
  2. Step 2: Convert to fraction form
    1,127.93/1,556.61 = 630.58/x
  3. Step 3: Cross multiply
    1,127.93x = 1,556.61 × 630.58
  4. Step 4: Simplify right side
    1,127.93x = 981,567.13
  5. Step 5: Solve for x
    x = 981,567.13/1,127.93
  6. Step 6: Final answer
    x = 870.24

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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.