Home / 2,075.18-2,863.64-1,191.28

Finding the Fourth Proportional to 2,075.18, 2,863.64 and 1,191.28

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Solution

The fourth proportional to 2,075.18, 2,863.64 and 1,191.28 is: 1,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.18 : 2,863.64 = 1,191.28 : x
  2. Step 2: Convert to fraction form
    2,075.18/2,863.64 = 1,191.28/x
  3. Step 3: Cross multiply
    2,075.18x = 2,863.64 × 1,191.28
  4. Step 4: Simplify right side
    2,075.18x = 3,411,397.06
  5. Step 5: Solve for x
    x = 3,411,397.06/2,075.18
  6. Step 6: Final answer
    x = 1,643.90

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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.