Home / 1,897.47-2,846.20-1,147.13

Finding the Fourth Proportional to 1,897.47, 2,846.20 and 1,147.13

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Solution

The fourth proportional to 1,897.47, 2,846.20 and 1,147.13 is: 1,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.47 : 2,846.20 = 1,147.13 : x
  2. Step 2: Convert to fraction form
    1,897.47/2,846.20 = 1,147.13/x
  3. Step 3: Cross multiply
    1,897.47x = 2,846.20 × 1,147.13
  4. Step 4: Simplify right side
    1,897.47x = 3,264,944.31
  5. Step 5: Solve for x
    x = 3,264,944.31/1,897.47
  6. Step 6: Final answer
    x = 1,720.68

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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.