Home / 1,506.53-2,080.30-947.94

Finding the Fourth Proportional to 1,506.53, 2,080.30 and 947.94

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Solution

The fourth proportional to 1,506.53, 2,080.30 and 947.94 is: 1,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.53 : 2,080.30 = 947.94 : x
  2. Step 2: Convert to fraction form
    1,506.53/2,080.30 = 947.94/x
  3. Step 3: Cross multiply
    1,506.53x = 2,080.30 × 947.94
  4. Step 4: Simplify right side
    1,506.53x = 1,971,999.58
  5. Step 5: Solve for x
    x = 1,971,999.58/1,506.53
  6. Step 6: Final answer
    x = 1,308.97

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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.