Home / 1,030.07-1,421.43-610.46

Finding the Fourth Proportional to 1,030.07, 1,421.43 and 610.46

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Solution

The fourth proportional to 1,030.07, 1,421.43 and 610.46 is: 842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.07 : 1,421.43 = 610.46 : x
  2. Step 2: Convert to fraction form
    1,030.07/1,421.43 = 610.46/x
  3. Step 3: Cross multiply
    1,030.07x = 1,421.43 × 610.46
  4. Step 4: Simplify right side
    1,030.07x = 867,725.53
  5. Step 5: Solve for x
    x = 867,725.53/1,030.07
  6. Step 6: Final answer
    x = 842.40

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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.