Home / 1,346.24-2,019.95-653.44

Finding the Fourth Proportional to 1,346.24, 2,019.95 and 653.44

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Solution

The fourth proportional to 1,346.24, 2,019.95 and 653.44 is: 980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.24 : 2,019.95 = 653.44 : x
  2. Step 2: Convert to fraction form
    1,346.24/2,019.95 = 653.44/x
  3. Step 3: Cross multiply
    1,346.24x = 2,019.95 × 653.44
  4. Step 4: Simplify right side
    1,346.24x = 1,319,916.13
  5. Step 5: Solve for x
    x = 1,319,916.13/1,346.24
  6. Step 6: Final answer
    x = 980.45

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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.