Home / 1,749.20-2,623.64-653.04

Finding the Fourth Proportional to 1,749.20, 2,623.64 and 653.04

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Solution

The fourth proportional to 1,749.20, 2,623.64 and 653.04 is: 979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.20 : 2,623.64 = 653.04 : x
  2. Step 2: Convert to fraction form
    1,749.20/2,623.64 = 653.04/x
  3. Step 3: Cross multiply
    1,749.20x = 2,623.64 × 653.04
  4. Step 4: Simplify right side
    1,749.20x = 1,713,338.60
  5. Step 5: Solve for x
    x = 1,713,338.60/1,749.20
  6. Step 6: Final answer
    x = 979.50

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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.