Home / 2,087.02-3,130.45-854.10

Finding the Fourth Proportional to 2,087.02, 3,130.45 and 854.10

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Solution

The fourth proportional to 2,087.02, 3,130.45 and 854.10 is: 1,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.02 : 3,130.45 = 854.10 : x
  2. Step 2: Convert to fraction form
    2,087.02/3,130.45 = 854.10/x
  3. Step 3: Cross multiply
    2,087.02x = 3,130.45 × 854.10
  4. Step 4: Simplify right side
    2,087.02x = 2,673,717.35
  5. Step 5: Solve for x
    x = 2,673,717.35/2,087.02
  6. Step 6: Final answer
    x = 1,281.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.