Home / 3,145.93-4,703.91-2,870.53

Finding the Fourth Proportional to 3,145.93, 4,703.91 and 2,870.53

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Solution

The fourth proportional to 3,145.93, 4,703.91 and 2,870.53 is: 4,292.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.93 : 4,703.91 = 2,870.53 : x
  2. Step 2: Convert to fraction form
    3,145.93/4,703.91 = 2,870.53/x
  3. Step 3: Cross multiply
    3,145.93x = 4,703.91 × 2,870.53
  4. Step 4: Simplify right side
    3,145.93x = 13,502,714.77
  5. Step 5: Solve for x
    x = 13,502,714.77/3,145.93
  6. Step 6: Final answer
    x = 4,292.12

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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.