Home / 1,877.40-2,816.28-999.27

Finding the Fourth Proportional to 1,877.40, 2,816.28 and 999.27

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Solution

The fourth proportional to 1,877.40, 2,816.28 and 999.27 is: 1,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.40 : 2,816.28 = 999.27 : x
  2. Step 2: Convert to fraction form
    1,877.40/2,816.28 = 999.27/x
  3. Step 3: Cross multiply
    1,877.40x = 2,816.28 × 999.27
  4. Step 4: Simplify right side
    1,877.40x = 2,814,224.12
  5. Step 5: Solve for x
    x = 2,814,224.12/1,877.40
  6. Step 6: Final answer
    x = 1,499.00

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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.