Home / 4,870.80-6,721.68-2,746.32

Finding the Fourth Proportional to 4,870.80, 6,721.68 and 2,746.32

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Solution

The fourth proportional to 4,870.80, 6,721.68 and 2,746.32 is: 3,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.80 : 6,721.68 = 2,746.32 : x
  2. Step 2: Convert to fraction form
    4,870.80/6,721.68 = 2,746.32/x
  3. Step 3: Cross multiply
    4,870.80x = 6,721.68 × 2,746.32
  4. Step 4: Simplify right side
    4,870.80x = 18,459,884.22
  5. Step 5: Solve for x
    x = 18,459,884.22/4,870.80
  6. Step 6: Final answer
    x = 3,789.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.