Home / 1,544.20-2,130.53-881.01

Finding the Fourth Proportional to 1,544.20, 2,130.53 and 881.01

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Solution

The fourth proportional to 1,544.20, 2,130.53 and 881.01 is: 1,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.20 : 2,130.53 = 881.01 : x
  2. Step 2: Convert to fraction form
    1,544.20/2,130.53 = 881.01/x
  3. Step 3: Cross multiply
    1,544.20x = 2,130.53 × 881.01
  4. Step 4: Simplify right side
    1,544.20x = 1,877,013.83
  5. Step 5: Solve for x
    x = 1,877,013.83/1,544.20
  6. Step 6: Final answer
    x = 1,215.53

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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.