Home / 4,985.65-6,877.60-2,889.01

Finding the Fourth Proportional to 4,985.65, 6,877.60 and 2,889.01

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Solution

The fourth proportional to 4,985.65, 6,877.60 and 2,889.01 is: 3,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.65 : 6,877.60 = 2,889.01 : x
  2. Step 2: Convert to fraction form
    4,985.65/6,877.60 = 2,889.01/x
  3. Step 3: Cross multiply
    4,985.65x = 6,877.60 × 2,889.01
  4. Step 4: Simplify right side
    4,985.65x = 19,869,455.18
  5. Step 5: Solve for x
    x = 19,869,455.18/4,985.65
  6. Step 6: Final answer
    x = 3,985.33

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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.