Home / 4,987.36-6,883.95-2,891.08

Finding the Fourth Proportional to 4,987.36, 6,883.95 and 2,891.08

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Solution

The fourth proportional to 4,987.36, 6,883.95 and 2,891.08 is: 3,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.36 : 6,883.95 = 2,891.08 : x
  2. Step 2: Convert to fraction form
    4,987.36/6,883.95 = 2,891.08/x
  3. Step 3: Cross multiply
    4,987.36x = 6,883.95 × 2,891.08
  4. Step 4: Simplify right side
    4,987.36x = 19,902,050.17
  5. Step 5: Solve for x
    x = 19,902,050.17/4,987.36
  6. Step 6: Final answer
    x = 3,990.50

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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.