Home / 2,847.79-3,929.95-1,588.81

Finding the Fourth Proportional to 2,847.79, 3,929.95 and 1,588.81

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Solution

The fourth proportional to 2,847.79, 3,929.95 and 1,588.81 is: 2,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.79 : 3,929.95 = 1,588.81 : x
  2. Step 2: Convert to fraction form
    2,847.79/3,929.95 = 1,588.81/x
  3. Step 3: Cross multiply
    2,847.79x = 3,929.95 × 1,588.81
  4. Step 4: Simplify right side
    2,847.79x = 6,243,916.27
  5. Step 5: Solve for x
    x = 6,243,916.27/2,847.79
  6. Step 6: Final answer
    x = 2,192.55

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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.