Home / 7,271.78-10,858.40-5,774.19

Finding the Fourth Proportional to 7,271.78, 10,858.40 and 5,774.19

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Solution

The fourth proportional to 7,271.78, 10,858.40 and 5,774.19 is: 8,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.78 : 10,858.40 = 5,774.19 : x
  2. Step 2: Convert to fraction form
    7,271.78/10,858.40 = 5,774.19/x
  3. Step 3: Cross multiply
    7,271.78x = 10,858.40 × 5,774.19
  4. Step 4: Simplify right side
    7,271.78x = 62,698,479.13
  5. Step 5: Solve for x
    x = 62,698,479.13/7,271.78
  6. Step 6: Final answer
    x = 8,622.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.