Home / 5,435.61-8,118.48-4,603.20

Finding the Fourth Proportional to 5,435.61, 8,118.48 and 4,603.20

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Solution

The fourth proportional to 5,435.61, 8,118.48 and 4,603.20 is: 6,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.61 : 8,118.48 = 4,603.20 : x
  2. Step 2: Convert to fraction form
    5,435.61/8,118.48 = 4,603.20/x
  3. Step 3: Cross multiply
    5,435.61x = 8,118.48 × 4,603.20
  4. Step 4: Simplify right side
    5,435.61x = 37,370,987.14
  5. Step 5: Solve for x
    x = 37,370,987.14/5,435.61
  6. Step 6: Final answer
    x = 6,875.21

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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.