Home / 3,615.18-4,988.94-1,959.18

Finding the Fourth Proportional to 3,615.18, 4,988.94 and 1,959.18

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Solution

The fourth proportional to 3,615.18, 4,988.94 and 1,959.18 is: 2,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.18 : 4,988.94 = 1,959.18 : x
  2. Step 2: Convert to fraction form
    3,615.18/4,988.94 = 1,959.18/x
  3. Step 3: Cross multiply
    3,615.18x = 4,988.94 × 1,959.18
  4. Step 4: Simplify right side
    3,615.18x = 9,774,231.47
  5. Step 5: Solve for x
    x = 9,774,231.47/3,615.18
  6. Step 6: Final answer
    x = 2,703.66

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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.