Home / 2,223.63-3,068.28-1,228.95

Finding the Fourth Proportional to 2,223.63, 3,068.28 and 1,228.95

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Solution

The fourth proportional to 2,223.63, 3,068.28 and 1,228.95 is: 1,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.63 : 3,068.28 = 1,228.95 : x
  2. Step 2: Convert to fraction form
    2,223.63/3,068.28 = 1,228.95/x
  3. Step 3: Cross multiply
    2,223.63x = 3,068.28 × 1,228.95
  4. Step 4: Simplify right side
    2,223.63x = 3,770,762.71
  5. Step 5: Solve for x
    x = 3,770,762.71/2,223.63
  6. Step 6: Final answer
    x = 1,695.77

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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.