Home / 3,117.84-4,673.28-1,386.24

Finding the Fourth Proportional to 3,117.84, 4,673.28 and 1,386.24

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Solution

The fourth proportional to 3,117.84, 4,673.28 and 1,386.24 is: 2,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.84 : 4,673.28 = 1,386.24 : x
  2. Step 2: Convert to fraction form
    3,117.84/4,673.28 = 1,386.24/x
  3. Step 3: Cross multiply
    3,117.84x = 4,673.28 × 1,386.24
  4. Step 4: Simplify right side
    3,117.84x = 6,478,287.67
  5. Step 5: Solve for x
    x = 6,478,287.67/3,117.84
  6. Step 6: Final answer
    x = 2,077.81

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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.