Home / 4,878.07-7,317.81-1,590.35

Finding the Fourth Proportional to 4,878.07, 7,317.81 and 1,590.35

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Solution

The fourth proportional to 4,878.07, 7,317.81 and 1,590.35 is: 2,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.07 : 7,317.81 = 1,590.35 : x
  2. Step 2: Convert to fraction form
    4,878.07/7,317.81 = 1,590.35/x
  3. Step 3: Cross multiply
    4,878.07x = 7,317.81 × 1,590.35
  4. Step 4: Simplify right side
    4,878.07x = 11,637,879.13
  5. Step 5: Solve for x
    x = 11,637,879.13/4,878.07
  6. Step 6: Final answer
    x = 2,385.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.