Home / 6,931.18-10,386.69-3,960.46

Finding the Fourth Proportional to 6,931.18, 10,386.69 and 3,960.46

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Solution

The fourth proportional to 6,931.18, 10,386.69 and 3,960.46 is: 5,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.18 : 10,386.69 = 3,960.46 : x
  2. Step 2: Convert to fraction form
    6,931.18/10,386.69 = 3,960.46/x
  3. Step 3: Cross multiply
    6,931.18x = 10,386.69 × 3,960.46
  4. Step 4: Simplify right side
    6,931.18x = 41,136,070.28
  5. Step 5: Solve for x
    x = 41,136,070.28/6,931.18
  6. Step 6: Final answer
    x = 5,934.93

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1.5x scale

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.