Home / 1,307.08-1,962.78-1,075.96

Finding the Fourth Proportional to 1,307.08, 1,962.78 and 1,075.96

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Solution

The fourth proportional to 1,307.08, 1,962.78 and 1,075.96 is: 1,615.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.08 : 1,962.78 = 1,075.96 : x
  2. Step 2: Convert to fraction form
    1,307.08/1,962.78 = 1,075.96/x
  3. Step 3: Cross multiply
    1,307.08x = 1,962.78 × 1,075.96
  4. Step 4: Simplify right side
    1,307.08x = 2,111,872.77
  5. Step 5: Solve for x
    x = 2,111,872.77/1,307.08
  6. Step 6: Final answer
    x = 1,615.72

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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.