Home / 3,111.67-4,666.93-1,031.70

Finding the Fourth Proportional to 3,111.67, 4,666.93 and 1,031.70

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Solution

The fourth proportional to 3,111.67, 4,666.93 and 1,031.70 is: 1,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.67 : 4,666.93 = 1,031.70 : x
  2. Step 2: Convert to fraction form
    3,111.67/4,666.93 = 1,031.70/x
  3. Step 3: Cross multiply
    3,111.67x = 4,666.93 × 1,031.70
  4. Step 4: Simplify right side
    3,111.67x = 4,814,871.68
  5. Step 5: Solve for x
    x = 4,814,871.68/3,111.67
  6. Step 6: Final answer
    x = 1,547.36

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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.