Home / 3,212.40-4,818.72-1,570.32

Finding the Fourth Proportional to 3,212.40, 4,818.72 and 1,570.32

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Solution

The fourth proportional to 3,212.40, 4,818.72 and 1,570.32 is: 2,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.40 : 4,818.72 = 1,570.32 : x
  2. Step 2: Convert to fraction form
    3,212.40/4,818.72 = 1,570.32/x
  3. Step 3: Cross multiply
    3,212.40x = 4,818.72 × 1,570.32
  4. Step 4: Simplify right side
    3,212.40x = 7,566,932.39
  5. Step 5: Solve for x
    x = 7,566,932.39/3,212.40
  6. Step 6: Final answer
    x = 2,355.54

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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.