Home / 4,160.79-6,239.08-1,386.47

Finding the Fourth Proportional to 4,160.79, 6,239.08 and 1,386.47

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Solution

The fourth proportional to 4,160.79, 6,239.08 and 1,386.47 is: 2,079.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.79 : 6,239.08 = 1,386.47 : x
  2. Step 2: Convert to fraction form
    4,160.79/6,239.08 = 1,386.47/x
  3. Step 3: Cross multiply
    4,160.79x = 6,239.08 × 1,386.47
  4. Step 4: Simplify right side
    4,160.79x = 8,650,297.25
  5. Step 5: Solve for x
    x = 8,650,297.25/4,160.79
  6. Step 6: Final answer
    x = 2,079.00

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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.