Home / 2,878.02-3,967.65-2,434.14

Finding the Fourth Proportional to 2,878.02, 3,967.65 and 2,434.14

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Solution

The fourth proportional to 2,878.02, 3,967.65 and 2,434.14 is: 3,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.02 : 3,967.65 = 2,434.14 : x
  2. Step 2: Convert to fraction form
    2,878.02/3,967.65 = 2,434.14/x
  3. Step 3: Cross multiply
    2,878.02x = 3,967.65 × 2,434.14
  4. Step 4: Simplify right side
    2,878.02x = 9,657,815.57
  5. Step 5: Solve for x
    x = 9,657,815.57/2,878.02
  6. Step 6: Final answer
    x = 3,355.72

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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.