Home / 7,030.99-9,702.55-3,887.18

Finding the Fourth Proportional to 7,030.99, 9,702.55 and 3,887.18

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Solution

The fourth proportional to 7,030.99, 9,702.55 and 3,887.18 is: 5,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.99 : 9,702.55 = 3,887.18 : x
  2. Step 2: Convert to fraction form
    7,030.99/9,702.55 = 3,887.18/x
  3. Step 3: Cross multiply
    7,030.99x = 9,702.55 × 3,887.18
  4. Step 4: Simplify right side
    7,030.99x = 37,715,558.31
  5. Step 5: Solve for x
    x = 37,715,558.31/7,030.99
  6. Step 6: Final answer
    x = 5,364.19

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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.