Home / 1,785.18-2,457.95-1,621.16

Finding the Fourth Proportional to 1,785.18, 2,457.95 and 1,621.16

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Solution

The fourth proportional to 1,785.18, 2,457.95 and 1,621.16 is: 2,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.18 : 2,457.95 = 1,621.16 : x
  2. Step 2: Convert to fraction form
    1,785.18/2,457.95 = 1,621.16/x
  3. Step 3: Cross multiply
    1,785.18x = 2,457.95 × 1,621.16
  4. Step 4: Simplify right side
    1,785.18x = 3,984,709.83
  5. Step 5: Solve for x
    x = 3,984,709.83/1,785.18
  6. Step 6: Final answer
    x = 2,232.11

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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.