Home / 2,925.87-4,039.53-1,864.23

Finding the Fourth Proportional to 2,925.87, 4,039.53 and 1,864.23

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Solution

The fourth proportional to 2,925.87, 4,039.53 and 1,864.23 is: 2,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.87 : 4,039.53 = 1,864.23 : x
  2. Step 2: Convert to fraction form
    2,925.87/4,039.53 = 1,864.23/x
  3. Step 3: Cross multiply
    2,925.87x = 4,039.53 × 1,864.23
  4. Step 4: Simplify right side
    2,925.87x = 7,530,613.01
  5. Step 5: Solve for x
    x = 7,530,613.01/2,925.87
  6. Step 6: Final answer
    x = 2,573.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.