Home / 7,897.10-10,897.56-4,912.84

Finding the Fourth Proportional to 7,897.10, 10,897.56 and 4,912.84

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Solution

The fourth proportional to 7,897.10, 10,897.56 and 4,912.84 is: 6,779.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.10 : 10,897.56 = 4,912.84 : x
  2. Step 2: Convert to fraction form
    7,897.10/10,897.56 = 4,912.84/x
  3. Step 3: Cross multiply
    7,897.10x = 10,897.56 × 4,912.84
  4. Step 4: Simplify right side
    7,897.10x = 53,537,968.67
  5. Step 5: Solve for x
    x = 53,537,968.67/7,897.10
  6. Step 6: Final answer
    x = 6,779.45

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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.