Home / 1,935.75-2,672.16-1,307.13

Finding the Fourth Proportional to 1,935.75, 2,672.16 and 1,307.13

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Solution

The fourth proportional to 1,935.75, 2,672.16 and 1,307.13 is: 1,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.75 : 2,672.16 = 1,307.13 : x
  2. Step 2: Convert to fraction form
    1,935.75/2,672.16 = 1,307.13/x
  3. Step 3: Cross multiply
    1,935.75x = 2,672.16 × 1,307.13
  4. Step 4: Simplify right side
    1,935.75x = 3,492,861.83
  5. Step 5: Solve for x
    x = 3,492,861.83/1,935.75
  6. Step 6: Final answer
    x = 1,804.39

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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.