Home / 1,746.18-2,619.27-429.94

Finding the Fourth Proportional to 1,746.18, 2,619.27 and 429.94

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Solution

The fourth proportional to 1,746.18, 2,619.27 and 429.94 is: 644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,746.18 : 2,619.27 = 429.94 : x
  2. Step 2: Convert to fraction form
    1,746.18/2,619.27 = 429.94/x
  3. Step 3: Cross multiply
    1,746.18x = 2,619.27 × 429.94
  4. Step 4: Simplify right side
    1,746.18x = 1,126,128.94
  5. Step 5: Solve for x
    x = 1,126,128.94/1,746.18
  6. Step 6: Final answer
    x = 644.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.