Home / 1,478.48-2,222.58-1,235.48

Finding the Fourth Proportional to 1,478.48, 2,222.58 and 1,235.48

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Solution

The fourth proportional to 1,478.48, 2,222.58 and 1,235.48 is: 1,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.48 : 2,222.58 = 1,235.48 : x
  2. Step 2: Convert to fraction form
    1,478.48/2,222.58 = 1,235.48/x
  3. Step 3: Cross multiply
    1,478.48x = 2,222.58 × 1,235.48
  4. Step 4: Simplify right side
    1,478.48x = 2,745,953.14
  5. Step 5: Solve for x
    x = 2,745,953.14/1,478.48
  6. Step 6: Final answer
    x = 1,857.28

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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.