Home / 2,369.12-3,271.72-1,953.60

Finding the Fourth Proportional to 2,369.12, 3,271.72 and 1,953.60

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Solution

The fourth proportional to 2,369.12, 3,271.72 and 1,953.60 is: 2,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.12 : 3,271.72 = 1,953.60 : x
  2. Step 2: Convert to fraction form
    2,369.12/3,271.72 = 1,953.60/x
  3. Step 3: Cross multiply
    2,369.12x = 3,271.72 × 1,953.60
  4. Step 4: Simplify right side
    2,369.12x = 6,391,632.19
  5. Step 5: Solve for x
    x = 6,391,632.19/2,369.12
  6. Step 6: Final answer
    x = 2,697.89

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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.