Home / 2,490.66-3,435.30-2,117.04

Finding the Fourth Proportional to 2,490.66, 3,435.30 and 2,117.04

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Solution

The fourth proportional to 2,490.66, 3,435.30 and 2,117.04 is: 2,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.66 : 3,435.30 = 2,117.04 : x
  2. Step 2: Convert to fraction form
    2,490.66/3,435.30 = 2,117.04/x
  3. Step 3: Cross multiply
    2,490.66x = 3,435.30 × 2,117.04
  4. Step 4: Simplify right side
    2,490.66x = 7,272,667.51
  5. Step 5: Solve for x
    x = 7,272,667.51/2,490.66
  6. Step 6: Final answer
    x = 2,919.98

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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.