Home / 1,590.08-2,381.82-1,570.64

Finding the Fourth Proportional to 1,590.08, 2,381.82 and 1,570.64

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Solution

The fourth proportional to 1,590.08, 2,381.82 and 1,570.64 is: 2,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.08 : 2,381.82 = 1,570.64 : x
  2. Step 2: Convert to fraction form
    1,590.08/2,381.82 = 1,570.64/x
  3. Step 3: Cross multiply
    1,590.08x = 2,381.82 × 1,570.64
  4. Step 4: Simplify right side
    1,590.08x = 3,740,981.76
  5. Step 5: Solve for x
    x = 3,740,981.76/1,590.08
  6. Step 6: Final answer
    x = 2,352.70

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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.