Home / 2,913.63-4,020.86-1,587.35

Finding the Fourth Proportional to 2,913.63, 4,020.86 and 1,587.35

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Solution

The fourth proportional to 2,913.63, 4,020.86 and 1,587.35 is: 2,190.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.63 : 4,020.86 = 1,587.35 : x
  2. Step 2: Convert to fraction form
    2,913.63/4,020.86 = 1,587.35/x
  3. Step 3: Cross multiply
    2,913.63x = 4,020.86 × 1,587.35
  4. Step 4: Simplify right side
    2,913.63x = 6,382,484.08
  5. Step 5: Solve for x
    x = 6,382,484.08/2,913.63
  6. Step 6: Final answer
    x = 2,190.56

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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.