Home / 4,818.51-7,228.20-1,308.72

Finding the Fourth Proportional to 4,818.51, 7,228.20 and 1,308.72

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Solution

The fourth proportional to 4,818.51, 7,228.20 and 1,308.72 is: 1,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.51 : 7,228.20 = 1,308.72 : x
  2. Step 2: Convert to fraction form
    4,818.51/7,228.20 = 1,308.72/x
  3. Step 3: Cross multiply
    4,818.51x = 7,228.20 × 1,308.72
  4. Step 4: Simplify right side
    4,818.51x = 9,459,689.90
  5. Step 5: Solve for x
    x = 9,459,689.90/4,818.51
  6. Step 6: Final answer
    x = 1,963.20

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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.