Home / 2,953.80-4,075.92-1,695.20

Finding the Fourth Proportional to 2,953.80, 4,075.92 and 1,695.20

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Solution

The fourth proportional to 2,953.80, 4,075.92 and 1,695.20 is: 2,339.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.80 : 4,075.92 = 1,695.20 : x
  2. Step 2: Convert to fraction form
    2,953.80/4,075.92 = 1,695.20/x
  3. Step 3: Cross multiply
    2,953.80x = 4,075.92 × 1,695.20
  4. Step 4: Simplify right side
    2,953.80x = 6,909,479.20
  5. Step 5: Solve for x
    x = 6,909,479.20/2,953.80
  6. Step 6: Final answer
    x = 2,339.18

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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.