Home / 1,568.24-2,165.70-1,197.80

Finding the Fourth Proportional to 1,568.24, 2,165.70 and 1,197.80

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Solution

The fourth proportional to 1,568.24, 2,165.70 and 1,197.80 is: 1,654.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.24 : 2,165.70 = 1,197.80 : x
  2. Step 2: Convert to fraction form
    1,568.24/2,165.70 = 1,197.80/x
  3. Step 3: Cross multiply
    1,568.24x = 2,165.70 × 1,197.80
  4. Step 4: Simplify right side
    1,568.24x = 2,594,075.46
  5. Step 5: Solve for x
    x = 2,594,075.46/1,568.24
  6. Step 6: Final answer
    x = 1,654.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.