Home / 4,971.30-6,858.89-2,875.14

Finding the Fourth Proportional to 4,971.30, 6,858.89 and 2,875.14

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Solution

The fourth proportional to 4,971.30, 6,858.89 and 2,875.14 is: 3,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.30 : 6,858.89 = 2,875.14 : x
  2. Step 2: Convert to fraction form
    4,971.30/6,858.89 = 2,875.14/x
  3. Step 3: Cross multiply
    4,971.30x = 6,858.89 × 2,875.14
  4. Step 4: Simplify right side
    4,971.30x = 19,720,268.99
  5. Step 5: Solve for x
    x = 19,720,268.99/4,971.30
  6. Step 6: Final answer
    x = 3,966.82

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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.