Home / 7,030.78-9,699.68-4,045.01

Finding the Fourth Proportional to 7,030.78, 9,699.68 and 4,045.01

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Solution

The fourth proportional to 7,030.78, 9,699.68 and 4,045.01 is: 5,580.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.78 : 9,699.68 = 4,045.01 : x
  2. Step 2: Convert to fraction form
    7,030.78/9,699.68 = 4,045.01/x
  3. Step 3: Cross multiply
    7,030.78x = 9,699.68 × 4,045.01
  4. Step 4: Simplify right side
    7,030.78x = 39,235,264.21
  5. Step 5: Solve for x
    x = 39,235,264.21/7,030.78
  6. Step 6: Final answer
    x = 5,580.50

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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.