Home / 1,575.36-2,357.28-1,209.28

Finding the Fourth Proportional to 1,575.36, 2,357.28 and 1,209.28

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Solution

The fourth proportional to 1,575.36, 2,357.28 and 1,209.28 is: 1,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.36 : 2,357.28 = 1,209.28 : x
  2. Step 2: Convert to fraction form
    1,575.36/2,357.28 = 1,209.28/x
  3. Step 3: Cross multiply
    1,575.36x = 2,357.28 × 1,209.28
  4. Step 4: Simplify right side
    1,575.36x = 2,850,611.56
  5. Step 5: Solve for x
    x = 2,850,611.56/1,575.36
  6. Step 6: Final answer
    x = 1,809.50

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1.5x scale

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.