Home / 3,045.80-4,568.70-1,587.80

Finding the Fourth Proportional to 3,045.80, 4,568.70 and 1,587.80

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Solution

The fourth proportional to 3,045.80, 4,568.70 and 1,587.80 is: 2,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.80 : 4,568.70 = 1,587.80 : x
  2. Step 2: Convert to fraction form
    3,045.80/4,568.70 = 1,587.80/x
  3. Step 3: Cross multiply
    3,045.80x = 4,568.70 × 1,587.80
  4. Step 4: Simplify right side
    3,045.80x = 7,254,181.86
  5. Step 5: Solve for x
    x = 7,254,181.86/3,045.80
  6. Step 6: Final answer
    x = 2,381.70

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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.