Home / 4,307.60-6,461.40-1,386.13

Finding the Fourth Proportional to 4,307.60, 6,461.40 and 1,386.13

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Solution

The fourth proportional to 4,307.60, 6,461.40 and 1,386.13 is: 2,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,307.60 : 6,461.40 = 1,386.13 : x
  2. Step 2: Convert to fraction form
    4,307.60/6,461.40 = 1,386.13/x
  3. Step 3: Cross multiply
    4,307.60x = 6,461.40 × 1,386.13
  4. Step 4: Simplify right side
    4,307.60x = 8,956,340.38
  5. Step 5: Solve for x
    x = 8,956,340.38/4,307.60
  6. Step 6: Final answer
    x = 2,079.20

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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.