Home / 1,675.20-2,309.76-1,395.84

Finding the Fourth Proportional to 1,675.20, 2,309.76 and 1,395.84

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Solution

The fourth proportional to 1,675.20, 2,309.76 and 1,395.84 is: 1,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.20 : 2,309.76 = 1,395.84 : x
  2. Step 2: Convert to fraction form
    1,675.20/2,309.76 = 1,395.84/x
  3. Step 3: Cross multiply
    1,675.20x = 2,309.76 × 1,395.84
  4. Step 4: Simplify right side
    1,675.20x = 3,224,055.40
  5. Step 5: Solve for x
    x = 3,224,055.40/1,675.20
  6. Step 6: Final answer
    x = 1,924.58

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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.