Home / 2,718.99-4,075.65-1,256.40

Finding the Fourth Proportional to 2,718.99, 4,075.65 and 1,256.40

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Solution

The fourth proportional to 2,718.99, 4,075.65 and 1,256.40 is: 1,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.99 : 4,075.65 = 1,256.40 : x
  2. Step 2: Convert to fraction form
    2,718.99/4,075.65 = 1,256.40/x
  3. Step 3: Cross multiply
    2,718.99x = 4,075.65 × 1,256.40
  4. Step 4: Simplify right side
    2,718.99x = 5,120,646.66
  5. Step 5: Solve for x
    x = 5,120,646.66/2,718.99
  6. Step 6: Final answer
    x = 1,883.29

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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.