Home / 1,050.07-1,575.40-400.86

Finding the Fourth Proportional to 1,050.07, 1,575.40 and 400.86

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Solution

The fourth proportional to 1,050.07, 1,575.40 and 400.86 is: 601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.07 : 1,575.40 = 400.86 : x
  2. Step 2: Convert to fraction form
    1,050.07/1,575.40 = 400.86/x
  3. Step 3: Cross multiply
    1,050.07x = 1,575.40 × 400.86
  4. Step 4: Simplify right side
    1,050.07x = 631,514.84
  5. Step 5: Solve for x
    x = 631,514.84/1,050.07
  6. Step 6: Final answer
    x = 601.40

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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.