Home / 5,590.17-8,385.33-1,430.21

Finding the Fourth Proportional to 5,590.17, 8,385.33 and 1,430.21

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Solution

The fourth proportional to 5,590.17, 8,385.33 and 1,430.21 is: 2,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.17 : 8,385.33 = 1,430.21 : x
  2. Step 2: Convert to fraction form
    5,590.17/8,385.33 = 1,430.21/x
  3. Step 3: Cross multiply
    5,590.17x = 8,385.33 × 1,430.21
  4. Step 4: Simplify right side
    5,590.17x = 11,992,782.82
  5. Step 5: Solve for x
    x = 11,992,782.82/5,590.17
  6. Step 6: Final answer
    x = 2,145.33

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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.