Home / 5,590.23-8,385.32-1,430.23

Finding the Fourth Proportional to 5,590.23, 8,385.32 and 1,430.23

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Solution

The fourth proportional to 5,590.23, 8,385.32 and 1,430.23 is: 2,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.23 : 8,385.32 = 1,430.23 : x
  2. Step 2: Convert to fraction form
    5,590.23/8,385.32 = 1,430.23/x
  3. Step 3: Cross multiply
    5,590.23x = 8,385.32 × 1,430.23
  4. Step 4: Simplify right side
    5,590.23x = 11,992,936.22
  5. Step 5: Solve for x
    x = 11,992,936.22/5,590.23
  6. Step 6: Final answer
    x = 2,145.34

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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.