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Finding the Fourth Proportional to 5,590.98, 8,386.44 and 1,430.99

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Solution

The fourth proportional to 5,590.98, 8,386.44 and 1,430.99 is: 2,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.98 : 8,386.44 = 1,430.99 : x
  2. Step 2: Convert to fraction form
    5,590.98/8,386.44 = 1,430.99/x
  3. Step 3: Cross multiply
    5,590.98x = 8,386.44 × 1,430.99
  4. Step 4: Simplify right side
    5,590.98x = 12,000,911.78
  5. Step 5: Solve for x
    x = 12,000,911.78/5,590.98
  6. Step 6: Final answer
    x = 2,146.48

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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.