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Finding the Fourth Proportional to 4,393.58, 6,590.17 and 1,620.05

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Solution

The fourth proportional to 4,393.58, 6,590.17 and 1,620.05 is: 2,430.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,393.58 : 6,590.17 = 1,620.05 : x
  2. Step 2: Convert to fraction form
    4,393.58/6,590.17 = 1,620.05/x
  3. Step 3: Cross multiply
    4,393.58x = 6,590.17 × 1,620.05
  4. Step 4: Simplify right side
    4,393.58x = 10,676,396.81
  5. Step 5: Solve for x
    x = 10,676,396.81/4,393.58
  6. Step 6: Final answer
    x = 2,430.00

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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.