Home / 1,672.19-2,307.83-973.57

Finding the Fourth Proportional to 1,672.19, 2,307.83 and 973.57

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Solution

The fourth proportional to 1,672.19, 2,307.83 and 973.57 is: 1,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.19 : 2,307.83 = 973.57 : x
  2. Step 2: Convert to fraction form
    1,672.19/2,307.83 = 973.57/x
  3. Step 3: Cross multiply
    1,672.19x = 2,307.83 × 973.57
  4. Step 4: Simplify right side
    1,672.19x = 2,246,829.19
  5. Step 5: Solve for x
    x = 2,246,829.19/1,672.19
  6. Step 6: Final answer
    x = 1,343.64

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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.