Home / 1,970.24-2,954.60-653.58

Finding the Fourth Proportional to 1,970.24, 2,954.60 and 653.58

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Solution

The fourth proportional to 1,970.24, 2,954.60 and 653.58 is: 980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.24 : 2,954.60 = 653.58 : x
  2. Step 2: Convert to fraction form
    1,970.24/2,954.60 = 653.58/x
  3. Step 3: Cross multiply
    1,970.24x = 2,954.60 × 653.58
  4. Step 4: Simplify right side
    1,970.24x = 1,931,067.47
  5. Step 5: Solve for x
    x = 1,931,067.47/1,970.24
  6. Step 6: Final answer
    x = 980.12

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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.