Home / 1,573.30-2,170.53-943.85

Finding the Fourth Proportional to 1,573.30, 2,170.53 and 943.85

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Solution

The fourth proportional to 1,573.30, 2,170.53 and 943.85 is: 1,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.30 : 2,170.53 = 943.85 : x
  2. Step 2: Convert to fraction form
    1,573.30/2,170.53 = 943.85/x
  3. Step 3: Cross multiply
    1,573.30x = 2,170.53 × 943.85
  4. Step 4: Simplify right side
    1,573.30x = 2,048,643.89
  5. Step 5: Solve for x
    x = 2,048,643.89/1,573.30
  6. Step 6: Final answer
    x = 1,302.13

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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.