Home / 1,756.44-2,423.58-1,291.80

Finding the Fourth Proportional to 1,756.44, 2,423.58 and 1,291.80

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Solution

The fourth proportional to 1,756.44, 2,423.58 and 1,291.80 is: 1,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.44 : 2,423.58 = 1,291.80 : x
  2. Step 2: Convert to fraction form
    1,756.44/2,423.58 = 1,291.80/x
  3. Step 3: Cross multiply
    1,756.44x = 2,423.58 × 1,291.80
  4. Step 4: Simplify right side
    1,756.44x = 3,130,780.64
  5. Step 5: Solve for x
    x = 3,130,780.64/1,756.44
  6. Step 6: Final answer
    x = 1,782.46

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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.