Home / 2,002.48-2,985.21-1,970.92

Finding the Fourth Proportional to 2,002.48, 2,985.21 and 1,970.92

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Solution

The fourth proportional to 2,002.48, 2,985.21 and 1,970.92 is: 2,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.48 : 2,985.21 = 1,970.92 : x
  2. Step 2: Convert to fraction form
    2,002.48/2,985.21 = 1,970.92/x
  3. Step 3: Cross multiply
    2,002.48x = 2,985.21 × 1,970.92
  4. Step 4: Simplify right side
    2,002.48x = 5,883,610.09
  5. Step 5: Solve for x
    x = 5,883,610.09/2,002.48
  6. Step 6: Final answer
    x = 2,938.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.