Home / 2,875.29-4,284-2,686.69

Finding the Fourth Proportional to 2,875.29, 4,284 and 2,686.69

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Solution

The fourth proportional to 2,875.29, 4,284 and 2,686.69 is: 4,003.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.29 : 4,284 = 2,686.69 : x
  2. Step 2: Convert to fraction form
    2,875.29/4,284 = 2,686.69/x
  3. Step 3: Cross multiply
    2,875.29x = 4,284 × 2,686.69
  4. Step 4: Simplify right side
    2,875.29x = 11,509,779.96
  5. Step 5: Solve for x
    x = 11,509,779.96/2,875.29
  6. Step 6: Final answer
    x = 4,003.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.